I have the original Soviet manual in Russian in PDF. Well it's a PDF of jpeg's of the pages and the diagrams are rough black and white drawings that don't show up well and the text is in Russian. It's too large to post here but I might be able to e-mail it. I think it's just over 7 MB or maybe just under 8 MB. It's sort of interesting but the diagrams and drawings are almost useless (very grainy and black) and the instructions are in Russian.